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CURRENT FLOW THROUGH
INTERFACE BOARDS 806-3398 AND 106-0386
(H52 APPLICATION)
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11
12
J3
J2 PIN 1
J2
1
2
4
5
6
7
8
9
10
11
12
13
14
15
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2
3
4
5
6
7
8
9
10
11
12
J1
LEFT VAT FULL OR RIGHT VAT
INTERFACE BOARD
12 VAC TO CPTR
J3 PIN 1
GROUND
GROUND
3
COMPUTER (12 VAC)
J3 PIN 3
COMPUTER RT HT RELAY
COMPUTER LT HT RELAY
NOT USED
NOT USED
NOT USED NOT USED
NOT USED NOT USED
RT ALARM OUT
**
ALR (RIGHT)
COMPUTER SOUND DEVICE
LT ALARM OUT
*
AD (LEFT)
COMPUTER
J3 PIN 6
COMPUTER
COMPUTER J1 PIN 6
J1 PIN 2 & J3 PIN 2
NOT USED NOT USED
NOT USEDNOT USED
NOT USED
NOT USED
TEMP PROBE J2 PIN 15
NOT USED
24 VAC IN
NOT USED
MAIN GAS VALVE
NOT USED
NOT USED
12 VAC XFMR
J2 PIN 14 TEMP PROBE
J2 PIN 3
12 VAC XFMR
NOT USED
NOT USED
J2 PIN 13
TEMP PROBE
NOT USED NOT USED
24 VAC IN
MAIN GAS VALVE via
HIGH LIMIT
NOT USED
NOT USED
120 VAC IN
BLOWER
BLOWER FAN
AND XFMR BOX
COMPUTER 12 VDC TO RELAYS
NOT USEDNOT USED
PWR via LT HT RELAY
V2D
NOT USED NOT USED
BLOWER via K4 (old)
or K2/K3 (new)
PWR via RT HT RELAY
V1S OR V1D
J2 PIN 5 HOOD RELAY
J2 PIN 14TEMP PROBE
V2D
PWR
AD
AS
V2S
GND
V1D
PWR
ALR
V1S
GND
MOD 25V GROUND GROUND
MOD V2D
MOD 25V TERM
DRAIN SWITCH (OPT)
J2 PIN 12
NOT USED NOT USED
NOT USED NOT USED
GROUND MOD 25V GROUND
J3 PIN 9
MOD VALVE used on
Dual Vat Only
MOD 25V TERM
J3 PIN 8 via RT HT RELAY
MOD ALARM
J2 PIN 10
MOD VALVE
*
via HLS via HLS
J3 PIN 9
J1 PIN 9
J1 PIN 8 via LT HT RELAY
NOT USED NOT USED
** Dual Vat configurations
** Full Vat configurations